J-cup roller
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Roller J-Cups – Pair


Our exclusive Roller J-Cups allow for easy bar placement adjusting.

Fits 2.3″ x 2.3″ uprights with 5/8″ holes only.


In Stock




Easily adjust the position of your bar with these
one-of-a-kind Roller J-Cups.

The unique and extraordinarily useful design of these exclusive Roller J-Cups allows you to quickly and easily adjust the position of your barbell. To learn more, check out Bells of Steel J-Cups: What’s the Difference?

Specs Per J-Cup

Outer CoatingBlack Powder Coat
Roller MaterialHard Nylon
Max Capacity136kg/300lbs
Shipping Box Dimensions7" x 7" x 7"
WarrantyLimited Lifetime Warranty

IMPORTANT: The J-Cups ONLY fit upright tubing dimensions of 2.3” x 2.3” (60mm x 60mm) with 5/8” holes — our standard Bells of Steel upright size.

Frequently Asked Questions

Each Roller J-Cup has a 158mm/6.22″ height, 65mm/2.56″ width, and 165mm/6.49″ total length (depth).

Each Roller J-Cup weighs 1.1kg/2.5lbs, for a combined weight of 2.2kg/5lbs.

The roller material is hard nylon, with a black powder coat on the outside of the Roller J-Cups.

Each Roller J-Cup has a 136kg/300lb static capacity, for a 272kg/600lb total weight capacity.

No, it’s very unlikely that they will fit. The Roller J-Cups are designed to fit perfectly to fit our racks with 2.3” x 2.3″ / 60mm x 60 mm and 5/8” holes.

No, the Roller J-Cups currently do not have any inner lining. To avoid premature wearing of your barbell, ensure it is centered on the roller prior to adjusting the bar to the left or right.

Yes, each Roller J-Cup has a distinct right or left side and they will look symmetrical when mounted.

In the box, you’ll find the following pieces: two (2) Roller J-Cups.

No tools are needed, as there is no assembly required.

Covered under our Limited Lifetime Warranty guarantees that the Roller J-Cups will not break under normal use, and protects against defects in material, function and workmanship.